progress property
The progress from the arrow's tail starting point, as a ratio of its total length clamped to the range [0, 1]. Gets the progress of the arrow tail, 0 by default.
Implementation
double get progress;
The progress from the arrow's tail starting point, as a ratio of its total length clamped to the range [0, 1]. Sets the progress of the arrow tail from its starting point as a ratio of its total length clamped to the range [0; 1].
As the progress varies, the equivalent part of the arrow tail gets covered by the progress color. The rest of the arrow tail until its end point, including the head, retains the line color.
Implementation
set progress(double value);